a square potential barrier

Q: What is the value of the expression 1/2 (3x - 5) +5 when x= -3? A. 2 OB. 4.5 O C. -2 D. 7

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Q: sent each of the following combinations of units in the correct Sl form: (a) lum (o) Niks? and (d)…

A: We know prefixes:- giga (G) = 109  micro (µ) = 10-6  kilo (k) = 103

Q: 7. The figure for this question contains the cross section dimensions for stations 25 and 26 of a…

A: On considering the three level section, The area of cross section can be denoted as, Area of cross…

Q: In a Measurement ,the Expected value is 48 V and the measured value is 43 V. Find (i) Absolute error…

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Q: Although these quantities vary from one type of cell to another, a cell can be 1.9 um in diameter…

A: The outer radius of the cell wall is The thickness of the cell wall is The density of the pure water…

Q: person's blood pressure is measured to be 129±8 mm Hg.129±8 mm Hg. What is the percent uncertainty?…

A: Pressure P = 129±8 mmWe need to determine percentage uncertainity.

Q: the answer is 5 sigfigs. what is the correct answer in 3 sig figs?

A: Given  θr = 26.016 °

Q: All the asnwers were wrong, they have to be in meters no milimeters

A: a) The electric potential due to a point charge is given by V = kq/r, where k is Coulomb's constant,…

Q: 5.6 A pipe with a 16 in. diameter carries water having a veloc- ity of 3 ft/s. What is the discharge…

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Q: The radius of a circle is measured to be 5.11 cm. From experience, the engineers judges that this…

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Q: In a Measurement ,the Expected value is 56 V and the measured value is 52 V. Find (i) Absolute error…

A: Given  Expected value. Is 56 Measured value is 52.

Q: A water pipe having a 2.45 cm inside diameter carries water into the basement of a house at a speed…

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Q: THE GREAT WALL OF CHINA IS APPROXIMATELY 21,196 KM LONG. IF A WALKING ROBOT WOULD WALK ACROSS IT AT…

A: time = distance/speed

Q: 1- Which of the following does not apply to systematic error? hna 90 30 37 d) 60 e) O 45

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Q: Volume D.000l m P=66484 प्लरार त O.0000l Relahie Deneily= Den sily Sample Kilm 3 Knokin Densty of…

A: The difference in the experimental value from the standard value is expressed in terms of percentage…

Q: how to determine experiment density with of a zinc rod with only the mass, length and diameter, when…

A: Given: Mass of zinc rod, m = 69.5 grams length of rod, L = 34.3 cm Diameter of rod, D=19 cm To…

Q: marathon runner completes a 42.188-km course in 2 h, 39 min, and 25 s. There is an uncertainty of 24…

A: Distance covered x = 42188 m                      Time t = 2 hr 39 min 25 s…

Q: The experimental density of a liquid is 0.7995 g/mL, the accepted value is 0.8115 g/mL.  Find the %…

A: The expression for the percentage of absolute error is, Absolute…

Q: A substance has a hexagonal closed-pack crystal structure, if its density is 6.51 grams per cubic…

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Q: Whdich one measuring device is percise but not accurate, random or systemtic

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Q: An instrument is used to determine the concentration of a chemical in water. The instrument signal…

A: Given : Relation between instrument signal "Z" and concentration of the chemical "C" Z = kC + P Z =…

Q: 1.26 An American golf ball has a mass of 1.62±0.01 oz and a nom- inal diameter of 1.68 in. Determine…

A: We are given mass of ball and uncertainty in it. We are given diameter also. We are also given…

Q: An infant’s pulse rate is measured to be (130.0 + 5.0) beats/min. What is the absolute uncertainty…

A: Given that:- Infant pulse rate=(130+5) beat/min

Q: The mass of an aluminum cube was measured to be (A)=71.2 g. Using the Vernier caliper, the length of…

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Q: A horizontal aluminum rod 3.9 cm in diameter projects 7.1 cm from a wall. A 1200 kg object is…

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Q: H'(0) = H"(0) =

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Q: For the following data (21, 24, 23, 21, 27, 20, 26, 22), the variance is 7 7.8 O 7.28 2.699

A: The given data is: 21, 24, 23, 21, 27, 20, 26, 22. TO DETERMINE: The variance of the given data, σ2.

Q: Apply the relative error formula and determine it in a calculation of the cross-sectional area of a…

A: Given ,  Diameter , D = 0.085 ± 0.002cm We know that cross-sectional area , A = πD22 =πD24 Using…

Q: Which of the following is a correctly reported confidence interval? (3.782 +/- 0.02) s O (4 +/- 0.1)…

A: We can see in option 1: The uncertainty is in hundredth part (because0.02) therefore writing number…

Q: In a Measurement ,the Expected value is 72 V and the measured value is 63 V. Find (i) Absolute error…

A: (i) The absolute error is given by :  (ii) The relative error is given by :

Q: May I ask for the steps so that I could get the result, N(f)df = 4πa^3f^2 / c^3 df?

A: Given that 4πρ28dρ=Nfdf Where ρ=2fac and f is the variable   We have to proof Nfdf=4πa3f2c3df

Q: 1. 200 kg = 2. 6um = 3. 4 Tbytes = 4. 5 Mm 5. 4 mg bytes mm kg %3D

A: We know that1 kg =103gAccording to question200kg=200103g200kg=200000g200kg=2×105g

Q: A T. G. has 50 tuns each of radius factor if 6.28 cm. cm. What is its reduction BH = 3.6 × 10-5…

A: We need to compute-Reduction factor (K)=?The data given as-Number of turns (n)=50BH=3.6×10-5…

Q: Is the formula dimensionally correct E=1/2 mv

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Q: If a radar unit measures that speed of an object 3 times and the results of 300km/hr, 297 km/hr, 302…

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